Andreas Preuss

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About Andreas Preuss

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    preuss.tokyo
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    delgesu1735@yahoo.com

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    Tokyo

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  1. Thanks for the excellent photo. I had a close look. Quite interesting. The valleys of the screw windings are round. If I am not mistaken, modern screws have triangular valleys from the cutting machine.
  2. Need to add screw eyelet making to my workshop repertoire.
  3. Hi Edi thanks for your enthusiasm in 'screwing up'! i read the article, didn't understand everything though. I'll let you know when the screw comes back. Cheers Andreas
  4. If there was insurance on the transport I would claim insurance money and then buy with its another fiddle.
  5. Thanks for the picture, Martin. Makes me wonder how we have to look on the whole thing. I don't think Voirin made the screws himself, so there is at least the possibility that he used different screws throughout his working life. In any case I think the screw must be very old.
  6. In other words the softer brass is hammered on the harder iron screw to mould the thread inside? Genius! this might be the reason why the pitch of the screw is so rough. This wouldn't be possible with a German DIN screw.
  7. Thanks, Martin. My l'archet books are now in storage. Just judging from the unusual pitch and how worn out the eyelet was I thought it should be an original screw.
  8. Thank you for your help, Jerry. I returned the bow to my customer with a temporary new screw and eyelet. He took the original screw with him so unfortunately I can't take measurements now.
  9. Because I Don't know much about bows, I hve no idea if the screw is original or not. In any case preserving things as they are seems to me the best ethic.
  10. Got unthreaded eyelets but not the right tap and I certainly don't have the equipment in my shop to make one. .
  11. Sounds all like a joke. it can't be repeated often enough,99 % of henleys contents are just rubbish. There are only 107 original entries written by him on American makers.
  12. Waiting for an answer from Paulus. I wished I could make it myself but I don't have a lathe on my shop.
  13. Does anyone know a manufacturer who makes eyelets which can be fitted to old bow screws? The screw of the Voirin bow fits to none of the commercial available eyelets. Top: inch pitch screw Bottom: Voirin screw